Vacuum cleaner



FIG. 1 is a front, left side, perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is an enlarged view of the vent portion in FIG. 1;

FIG. 8 is an enlarged view of the vent portion in FIG. 2;

FIG. 9 is an enlarged view of the vent portion in FIG. 3; and,

FIG. 10 is an enlarged view of the vent portion in FIG. 6. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 